ES8503164A1 - Variable frequency controller. - Google Patents

Variable frequency controller.

Info

Publication number
ES8503164A1
ES8503164A1 ES532210A ES532210A ES8503164A1 ES 8503164 A1 ES8503164 A1 ES 8503164A1 ES 532210 A ES532210 A ES 532210A ES 532210 A ES532210 A ES 532210A ES 8503164 A1 ES8503164 A1 ES 8503164A1
Authority
ES
Spain
Prior art keywords
pulse
source
triac
receive
limit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES532210A
Other languages
Spanish (es)
Other versions
ES532210A0 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FMC Corp
Original Assignee
FMC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FMC Corp filed Critical FMC Corp
Publication of ES532210A0 publication Critical patent/ES532210A0/en
Publication of ES8503164A1 publication Critical patent/ES8503164A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
    • H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
    • H02M5/22—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M5/25—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M5/27—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means for conversion of frequency
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system

Abstract

The invention pertains to a frequency divider and phase control for an electromagnetic feeder having a coil operable from a single phase alternating current source, comprising: a zero crossing network connected to said source and producing a first pulse each time the source crosses zero a synchronous presetable counter capable of counting to a limit connected to receive said said first pulse and produce a carry signal when said limit is reached monostable multivibrator means connected to receive said signal and generate a second pulse a triac connected in series with said coil across said source and gated by said second pulse and means for preseting said counter to vary the frequency of the pulses to said triac.
ES532210A 1983-05-04 1984-05-04 Variable frequency controller. Expired ES8503164A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/491,463 US4811193A (en) 1983-05-04 1983-05-04 Variable frequency controller

Publications (2)

Publication Number Publication Date
ES532210A0 ES532210A0 (en) 1985-02-01
ES8503164A1 true ES8503164A1 (en) 1985-02-01

Family

ID=23952336

Family Applications (1)

Application Number Title Priority Date Filing Date
ES532210A Expired ES8503164A1 (en) 1983-05-04 1984-05-04 Variable frequency controller.

Country Status (9)

Country Link
US (1) US4811193A (en)
EP (1) EP0131102B1 (en)
JP (1) JPS6026462A (en)
AU (1) AU565189B2 (en)
BR (1) BR8402098A (en)
CA (1) CA1229656A (en)
DE (1) DE3481349D1 (en)
ES (1) ES8503164A1 (en)
ZA (1) ZA843358B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IE61980B1 (en) * 1989-01-31 1994-12-14 Tech Developments Limited A timer unit
US5434457A (en) * 1993-07-30 1995-07-18 Josephs; Harold Foot pedal safety switch and safety circuit
GB9402156D0 (en) * 1994-02-04 1994-03-30 Sgs Thomson Microelectronics A multistandard ac/dc converter
US6116408A (en) * 1998-07-30 2000-09-12 Fmc Corporation Apparatus and system for controlling the operating frequency of an electromagnetic vibratory feeder at a submultiple of the power line frequency
CN107543956B (en) * 2016-06-24 2021-07-27 东方电气集团东方电机有限公司 Excitation system synchronous signal conditioning circuit and implementation method thereof

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT245115B (en) * 1964-08-11 1966-02-10 Ife Ges Fuer Maschinen Und App Circuit for the generation of phase-shiftable pulses for current control of drive magnets for vibration devices
US3649893A (en) * 1970-08-11 1972-03-14 Allegheny Ludlum Ind Inc Synchronized driver for electrical utilization devices
US3908158A (en) * 1973-05-09 1975-09-23 Borg Warner Control system for adjusting a-c motor speed at line frequency or a subharmonic of the line frequency
JPS50103667A (en) * 1974-01-22 1975-08-15
US3950657A (en) * 1974-10-21 1976-04-13 Rca Corporation Timer circuits
US4084155A (en) * 1976-10-05 1978-04-11 Fischer & Porter Co. Two-wire transmitter with totalizing counter
US4231104A (en) * 1978-04-26 1980-10-28 Teradyne, Inc. Generating timing signals
US4204141A (en) * 1978-09-11 1980-05-20 Esquire, Inc. Adjustable DC pulse circuit for variation over a predetermined range using two timer networks
AU527427B2 (en) * 1978-11-24 1983-03-03 International Combustion Australia Ltd. Means of energising vibrating feeders
US4337509A (en) * 1980-07-22 1982-06-29 Hitachi, Ltd. Method and apparatus for controlling firing phases of thyristors

Also Published As

Publication number Publication date
ES532210A0 (en) 1985-02-01
US4811193A (en) 1989-03-07
ZA843358B (en) 1985-07-31
AU565189B2 (en) 1987-09-10
EP0131102A2 (en) 1985-01-16
DE3481349D1 (en) 1990-03-15
EP0131102B1 (en) 1990-02-07
AU2770184A (en) 1984-11-08
BR8402098A (en) 1984-12-11
JPS6026462A (en) 1985-02-09
CA1229656A (en) 1987-11-24
EP0131102A3 (en) 1985-05-22

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19960603